Vapor-vacuum-controller valve.



H. H. HESS.

VAPOR VACUUM CONTROLLER YVALVE.

APPLICATION FILED MAR- 9,1917.

HARRY HALL HESS OF PHILADELPHIA, FENNSYLVAIG'Ii, ASSIGNOl-t T0 VAPUE J VACUUM HEATING C0,. OE PHILADELPHIA, PENNSYLVANIA, A CURPOEATIOBF OF NEW JERSEY.

Specification of Letters Patent.

Patented 33% Application filed March 9, 1917. Serial IxTo. 158,698.

To all whom it may concern: Be it known that 1, Hanna HALL Hess, a citizen of the United States residing at Philadelphia, in the count of Philadelphia and State of lennsylvania, have invented a certain neu and useful Vapor-Vacuum-Controller Valve, of which the following is a specification, the same being a continuation in'part of my application for Letters Patent serially numbered 111,276, the latter being. a renewal of application serially numbered 50,091 as filed September 10, 1915, patented September 4:, 1917, and numbered 1,239,4 l0. The controller as manufactured under United States Patent No. 924M317 and upon which device the present invention is an im-. proveinent, requires separate valves to prevent egress of vapor from and to prevent ingress of atmospheric air to the heating system. By such construction not only are two separate valves required but the stem of the valve for preventing egress of vapor Works through a stuffing box and the valve for preventing'ingress of atmospheric air to the system has substantially unrestricted outvvard movement. I The present invention has for its object provide a controller having a single self seating flap valve calculated to positively close a single valve opening upon vapor expansion and to remain seatedas vapor pressure lowers due to the vacuum in the system being heated. which vacuum is maintained .constant joy the prevention of ingress of atmospheric air to the system.

The invention consists of the improve ments hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully ,understood' from the following description.

taken in connection with the accompanying drawings forming part hereof and in which there is shown in side elevatlon partly sectioned a vapor-vacuum controller" equipped with a val e construction embodying the invention.

For the purpose of illustratingmy inven tion, I have shown in the accompanying drawings a form thereof which is at present preferred by me. since the same has been found in "practice to give satisfactory and reliable results, although it is to be understood that the. various instrumentalitiesof which my invention consists can he variously arranged and organized. and that my invention is not limited to the precise arrangement and organization cf the instrumentalities as herein shown and described.

Referring to the drawings lorepresents a tube, preferably of, brass, upon which the vapors of the heating system (not shown) act for expansive purposes. Such tube is clamped as at ii at one end to, a fixed sup port 12 and its other end is free for longi tudinal movement through a guide 3.8. At a suitable place. provision is made in the form of a single opening 14, for the egress of air from the system. As shown; the opening is provided in one end of the support 12.

Positioned for relatively closing the open-- Such in}; 14: is a self-{dining flap-valve. valve consists oi pivotal arm 16 the free 7. The arm 16 is carried by an'extension 19 on support 12. valve is advanced toward the opening 1%- by the.

expansion of tube 10. The direction of movement of the respective tubes is designated by an arrow in the drawing; andin this connection it is to be noted that the free end of tube 10 has fixed thereto a red 20 which passes preferablv through the tube and through the arm 1.6 and is provided at its free end With a nut or the like. Preferably having cushioned relation between said rod and the far side of arm 16 is a stop 21 so that undue expansion of'tube 10 will not cause buckling of controller parts. It Will be observed that expansion of tube 10 serves to close opening it, vapor acting exteriorly upon tube 10 The effect is that of closing a single opening; 14.- to the expulsion of vapor from the system and e prevention of egress of atmospheric airtoxthe s by. a single valve." From the'above descrihel controlling valve construction will be understood that with the vapor pressure rising, air as may be Within the system is caused to move in advance of the vapor and its Way to the atmosphere :srough op ins;

14 past the loosely positioi d flap-valve.

VVith' the heated vapor reaching the controller, the tube 10 rapidly heats 3X- pands thereb causing positive closing-8f opening es vapor pressurev the end of which is provided with a self-Mining; I

disk or flap 1 upon the opening system cools and a vacuum I sation drains away from is produced vacuum serves to maintain seated 14 the flap valve. As the flap valve is thus kept seated, no atmos pheric air finds its way Within the controller vacuum is maintained employment of any 'lockin or interlocking attachments. Water of con enopening 14. The opening 14 is located at the top of casing 12.

It' will now be apparent that I have dewhich vised a novel and useful construction which embodies the features ofadvantage enumerated as desirable in the statement of the e same is susceptible ove description and provided with an opening for the passage of a vacuum sysalr and an ouiilliet connected to tem for drai' ing' water of condensation away from said opening, a flap valve located beyond'said expansion tube and pivoted for free vibratory movement toward and away from said opening, and means controlled by the movement of said tube for closing said valve whereby the built-up vacuum maintains said valve closed under predetermined conditions:

In testimony signed my name.

HARRY HALL Hess.

whereof, I have hereunto 

